Glottis as a noun is an organ of speech, located in the larynx, and consisting of the true vocal cords and the opening between them. while Epiglottis as a noun is a cartilaginous organ in the throat of terrestrial vertebrates covering the glottis when swallowing to prevent food and liquid from entering the trachea, and in homo sapiens also a speech organ.
Part of speech: noun
Definition: An organ of speech, located in the larynx, and consisting of the true vocal cords and the opening between them.
Part of speech: noun
Definition: A cartilaginous organ in the throat of terrestrial vertebrates covering the glottis when swallowing to prevent food and liquid from entering the trachea, and in Homo sapiens also a speech organ.
We hope you now know whether to use Glottis or Epiglottis in your sentence.